From: kremlin <ian@kremlin.cc>
Date: Tue, 16 Sep 2014 21:26:28 +0000 (-0400)
Subject: might need to rewrite using gnu getopts instead of arg matching
X-Git-Url: https://uglyman.kremlin.cc/gitweb/gitweb.cgi?p=assignments.git;a=commitdiff_plain;h=259095d53e66747299b5f734077a90de9db4373b

might need to rewrite using gnu getopts instead of arg matching
---

diff --git a/assgn3/process-pid.sh b/assgn3/process-pid.sh
index daa6624..3837503 100755
--- a/assgn3/process-pid.sh
+++ b/assgn3/process-pid.sh
@@ -2,10 +2,12 @@
 
 USAGE="usage: ./process-pid.sh {[-h, -a], [-f, -e] <pid>}, -s <regexp>"
 
-if [ -z "$1" ]; then
-	echo "$USAGE"; exit 1
+# -h case
+if [[ "$1" -eq "-h" ]]; then
+	echo "$USAGE"; exit 0 
 
-elif [[ "$1" =~ ^-?[0-9]+$ ]]; then # unportable :(
+# <pid> case
+elif [[ "$1" =~ ^-?[0-9]+$ ]]; then
 	if `ps $1 > /dev/null 2>&1`; then
 		echo "you win!"; exit 0
 
@@ -13,6 +15,22 @@ elif [[ "$1" =~ ^-?[0-9]+$ ]]; then # unportable :(
 		echo -ne "invalid pid\n$USAGE"; exit 1
 	fi
 
-elif [[ "$1" -eq "-h" ]]; then
-	echo "$USAGE"; exit 0 
+# -e <pid> case
+elif [[ "$1" -eq "-e" && "$2" =~ ^-?[0-9]+$ ]]; then
+	if `ps $2 > /dev/null 2>&1`; then
+		echo "you win!"; exit 0;
+
+	else
+		echo -ne "invalid pid\n$USAGE"; exit 1
+
+# -s <pid> <regex> case
+elif [[ "$1" -eq "-s" && "$2" =~ ^-?[0-9]+$ ]]; then
+	if `ps $2 > /dev/null 2>&1`; then
+		echo "you win!"; exit 0;
+
+	else
+		echo -ne "invalid pid\n$USAGE"; exit 1
+
+else
+	echo "$USAGE"; exit 1
 fi